InsectNet forum

Rosalia funebris - I hope to eventually find one of these.

livingplanet3 wrote: Tue Jul 30, 2024 5:31 pm Rosalia funebris - I hope to eventually find one of these.

I feel pretty lucky to have found it, just spotted on a log while out looking around. Then I saw several more on the same log so it must have been an emergence event.

I also found this lighting in the same area which was new to me too.



At the Fourth of July Campground near Tajique.

Enaphalodes atomaris from Sierra Co. NM


Enaphalodes seminitidus from Pima Co. Arizona


Enaphalodes hispicornis from Coshise Co. Arizona

Eburia linsley from Cochise Co. Arizona


Susuacanga falli from Pima Co. Arizona


Malacopterus tenellus from Pima Co. Arizona

Neoclytus irroratus sp. from Cochise Co. Arizona


Derobrachus hovorei from Cochise Co. Arizona


Derobrachus geminatus from Cochise Co. Arizona

Obrium constricticolle from Santa Cruz Co. Arizona


Anelaphus subdepressus from Pima Co. Arizona


Anelaphus magnipunctatus from Cochise Co. Arizona

Hi MikeH,

Double-check your Enaphalodes atomarius - I believe this is actually Enaphalodes cortiphagus. And your Xylotrechus sp. from Cochise County is Neoclytus irroratus. Lots of good stuff!!

Cheers!
Bandrow

bandrow wrote: Sun Aug 18, 2024 12:32 am Double-check your Enaphalodes atomarius - I believe this is actually Enaphalodes cortiphagus.

What is the best way to tell cortiphagus and atomarius apart? I had a hard time being certain on these.

Trichocanonura linearis from Santa Cruz Co. Arizona


Osmidus guttatus from Santa Cruz Co. Arizona


Oeme rigida from Otero Co. Colorado

Eutrichillus neomexicanus from Sierra Co. New Mexico


Megasemum asperum from Sierra Co. New Mexico


Sternidius imitans from Santa Cruz Co. Arizona

Mike, what books do you use to ID your beetles?

Valenus inornatus from Cochise Co. Arizona


Tragosoma spiculum from Cochise Co. Arizona


Eustromula validum from Pima Co. Arizona

58chevy wrote: Wed Aug 21, 2024 3:40 pm Mike, what books do you use to ID your beetles?

My favorite approach is to post them on iNaturalist and let other people ID them for me but that does not seem to work that fast for longhorns, it is usually fast for Buprestidae and tiger beetles though.

I tend to use a few different sources for longhorns, "cerambycidae of North America" series is useful when I can get ahold of a copy but it is out of print and a little out of date. I can usually get a interlibrary loan at my local library from CSU or Univ of Wyoming but that does last long. A lot of times once I am confident about the genus, I will just Google or check bugguide for a key and that works sometimes, I've found that especially useful of Aneflomorpha for example.

I also have the two Evans books for eastern and western US which are nice to get close and a tiger beetles field guide which I don't find that useful, probably since I haven't spent enough time on it.

And volume 2 of American beetles which is super technical but should always key to a genus and have references to find a species key.

Methia sp. from Cochise co. Arizona


Methia sp. from Pima Co. Arizona


Poliaenus nuevoleonis from Cochise co. Arizona

Aneflus paracalvatus from Pima co. Arizona


Aneflus protensus from Pima co. Arizona


Phymatodes sp. from Baker co. Oregon

Great photos Mike, thanks for taking the time to post them.

Two places to know and to use:

-> Larry Bezarks Cerambycidae catalogue. A MUST for identifying longhorn beetles.

http://bezbycids.com/byciddb/wdefault.asp?w=n

-> Francesco Vitalis Cerambycidae-forum. A MUST for meeting colleagues, discussing and identifying specimens. A community of Cerambycidae enthousiasts both amateurs and scientists.

https://www.cerambycoidea.com/forum/default.asp

MikeH wrote: Sun Aug 18, 2024 5:02 pm

bandrow wrote: Sun Aug 18, 2024 12:32 am Double-check your Enaphalodes atomarius - I believe this is actually Enaphalodes cortiphagus.

What is the best way to tell cortiphagus and atomarius apart? I had a hard time being certain on these.

Hi Mike,

Sorry for the slow response - I'm rarely on here much due to a workload that's keeping me underwater.

There are differences in the shape of the last abdominal segments for both sexes, but the character I like to use is the nature of the elytral pubescence. In E. atomarius, the elytra are covered with short, erect golden setae in addition to the patches of grayish recumbent setae that create their mottled appearance. In E. cortiphagus, the elytra lack these erect setae, instead having dense recumbent gray setae only.

Hope this helps!
Bandrow

Hi Mike,

Your Phymatodes sp. from Baker County, Oregon is an interesting beast. I've never seen this species and the closest I can come to a name might be Phymatodes hardyi. There is just a single image on Bezark's site: http://bezbycids.com/byciddb/wdetails.asp?id=4571&w=n

The antennae on yours seem a bit different in the relative lengths of the antennomeres, but this could be due to your specimen and the one on Bezark being different sexes.

When I first saw this, I thought it could be a Haplidus species, but the locality is way out of range and it doesn't quite match that genus.

Very cool, whatever it is!!
Bandrow